Cutter for typewriters



y 1934- R. c. STEVENS CUTTER FOR TYPEWRITERS Filed Feb. 10, 1953 2Sheets-Sheet 1 INVENTOR ROSWELL Q STEVENS May 22, 1934.

R. C. STEVENS CUTTER FOR TYPEWRITERS 1933 2 Sheets-Sheet 2 Filed Feb. 10

INVENTOR ROSWELL C. STEVENS BY HIS ATTORNEYS Patented May 22, 1934CUTTER FOR TYPEWRITERS Roswell C. Stevens, Brooklyn, N. Y., assignor toDe Coppet & Doremus, a

firm composed of Richard H. Gordon, Warren B. Nash, A. F. Hetherington,Benjamin F. McGuckin, Howard Froelick, Charles H. Cairns, Lyster C.Reighley, Louis D. Froelick, Winslow Grannis, Andre De Coppet, Joseph D.Fitch, Rowland Stebbins, Charles Coleman Lee Andrews, and L. W. T.

Application February 10, 1933, Serial No. 656,185

30 Claims. (Cl. 197-133) This invention relates to typewriterattachments, and more particularly to devices of this character whichare actuated by the return movement of the typewriter carriage.

It is the main object of the invention to provide a device of thischaracter for cutting typed portions of a paper, leaving a remainingportion in the typewriter for'further typing.

Another object of the invention is to provide a device of thecharacter'described for stamping indicia on the paper.

Further objects are to simplify and improve the construction andoperation of devices of this character, to render them economical tomanufacture, convenient in use, and otherwise well adapted for thepurposes set forth.

Other objects and features of novelty will be apparent as the followingdescription proceeds,

reference being had to the accompanying draw ings, in which Figure 1 isa rear elevation of a typewriter having the preferred embodiment of thepresent invention applied thereto, showing the carriage near the end ofits forward or typing movement;

Figure 2 is a view similar to Figure 1, showing the carriage starting onits return movement;

Figure 3 is a detail of the cutter;

Figure 4 is a section taken along the line 44 of Figure 1 showing thecutter in inoperative position;

Figure 5 is a section taken along the line 55 I of Figure 2, showing thecutter in position opera tive to cut the paper;

Figure 6 is a section taken along the line 6-6 of Figure 1;

Figure 7 is a detail of the in retracted position;

Figure 8 is a view similar to Figure 7, but showing the stampingposition, and

Figure 9 is a detail of the cam and latch for the cutter mechanism.

The subject matter of this application embraces improvements upon andcombinations with the subject matter of the co-pending applicationofLouis E. Youell, Serial No. 605,505, filed April 15th, 1932, forTypewriter attachment.

The invention is of general application to various kinds of typewriters,and for this reason it has been illustrated in connection with aconventional typewriter, of which the platen 10, type bar 11, andportions of the carriage 12 and stationary frame 13, are shown. InFigurefi a sheet 15 which is to constitute the original being typed, ispassed around the platen 10 so as to receive the impression from thetype bar 11. A carbon stamping mechanism web 16 passes around the platenunder the sheet 15,-and a copy sheet 17 passes around the platen underboth sheets 15 and 16.

In the form shown, it is desired to line space the copy sheet 17 agreater distance than that of the original sheet 15. For this purpose aroller 19 is provided, and the sheet 17 is passed between this roller 19and a coacting pressure roller 20.

The roller 19 is driven by movement of the carriage 12. For thispurpose, the shaft of the roller 19 has keyed thereto a bevel gear 21which meshes with a bevel gear 22 loosely mounted on a shaft 23. Keyedto the shaft 23 is a spur gear 24 which meshes with a rack 25 secured tothe stationary frame portion 13 of the typewriter.

-As'shown in Figures 1 and 2, a ratchet wheel 28,

the customary feeding rollers which cooperate with the platen. The sheet17 however, is relatively narrow,'so that it may slide around the platen10 underneath the sheet 15, as it is not wide enough to be caught by theplaten pressure rollers.

With this arrangement, the sheet 15, after a line has been typedthereon, the line being reproduced on the sheet 17 by means of thecarbon 16, the sheet 15 may be line spaced by the mechanism normallyprovided on the typewriter for this purpose, generally during the returnmovement of the carriage. As the carriage returns, the gear 24 meshingwith the rack 25 is rotated, and imparts this rotation to the shaft 23and the ratchet 28.

Through the pawl 29 which engages the ratch' et 28, the bevel gears 21and 22 are rotated to drive the roller 19 and thus advance the sheet 17for a distance commensurate with the length of the rack 25 which isengaged by the gear 24. Thus by changing the location of the rack 25laterally, the distance through which the sheet 17 is moved by thereturn movement of the carriage may be readily adjusted.

During the forward movement of the carriage for the typing operation,the gear 24 again meshes with the rack 25 and rotates the ratchet 28.However, during this forward motion, the ratchetgagingthesamasothatthlsmotionottheshaft 23 is an idling motion, and nomovement is imparted to the gears 21 and 22.

The rollers 19 and 20 are preferably mounted in an auxiliary frame 32which may be conveniently supported by a pair of bolts 33 extendingupwardly from the carriage portion 12, which may be the customarytabular bar.

The sheet 17 is preferably a continuous web, and a supply roller 40therefor is journaled in the frame 32. Guide rollers 35 and 36 arecarried by extensions 37 of the auxiliary frame 32. From the roller 40the sheet 1'7 passes over roller 35, around the platen 10, over roller36, and between the rollers 19 and 20. The carbon sheet 16 and theoriginal sheet 15 may be inserted in the typewriter in the usual manner,or otherwise fed thereto as desired.

While the invention is not so limited in its use, it is of particularadvantage with respect to the operation of typing a master sheet ofclosely spaced items, carbon impressions of these items being widelyspaced on a continuous web, which is to be stamped and/or severed toproduce individual copy slips for each item. Hence the copy web may beadvanced by the return movement of the carriage as described above, andstamping and/or cutter mechanism is actuated by the remainder of thecarriage return movement.

As shown in Figures 1 and 2, an arm 41 is pivoted on a bolt 42 carriedby a plate 43 mounted on the frame 13. Adjustably secured to the arm 41is a bar 45 in which is rotatably mounted a cutter wheel 4'7. The arm 41is biased in one direction about its pivot by a helical spring 49secured to the plate 43. A block 50 is adjustably mounted on the plate43, and carries a leaf spring 51 which serves as a resilient stop forthe arm 41. A backing strip 52 is mounted on the carriage, having oneend secured to the frame 32 as at 44, and the other end yieldablymounted on a spring 46. Guides 53 and 54 are mounted under the strip 52,and the cutter bar 45 passes between the guides. The backing strip 52has a slot 55 at one end thereof, through which the cutter bar 45 andcutter wheel 4'7 may pass.

As shown in Figures 4 and 5, the backing strip 52 and guides 53 and 54are mounted close to the rollers 19 and 20, to receive the web 1'7therefrom. Tofacilitate the passage of the web 1'7, a flapper plate 56is loosely mounted on pins 5'7 between the backing strip 52 and theguide 54.

As shown in Figure 9, a cam roller 58 is carried by a slide 54 mountedon guide strip 53, and adjustable thereon by a screw 66. This cam rolleris mounted in the path of the cutter bar 45 so as to cam it downwardly,to bring a pin 61 on the arm 41 into the notch of a latch 62 pivoted onan extension of the plate 43. The other end of the guide strip 53carries a trip 63 in the path of a release roller 64 on the latch 62.

In operation, the initial part of the carriage return movement advancesthe copy strip 17 as described, and during this initial movement thecutter bar 45 extends upwardly through the slot 55. Further movement ofthe carriage causes the cutter to ride down through the slot, bringingthe arm 41 against the leaf spring 51. Thus during the remainder of thecarriage return movement, this spring causes thecutter wheel 4'7 to bearagainst the paper 17 and cut it against the backing strip 52. As the bar45 passes beyond the strip 17, it engages the cam wheel 58, and thecutter wheel 4'7 is latched in position clear of the paper, for thetyping stroke of the carriage. At the end of the typing stroke, thelatch is released by the roller 64 engaging the trip 63, which permitsthe cutter to pass up through the slot 55, for the sheet advancingportion 01 the return stroke.

The guide strip 53 carries mechanism for stamping the strip 17. In theform shown in Figures 7 and 8, this mechanism is detachable for overhauland adjustment, being mounted on a plate 65 slidable in guides 66carried by the strip 53. The plate 65 carries a housing 6'7 with a pin68 therein, on which is pivoted a stamp arm 69 carrying a changeablerubber dating stamp '70.

A toggle link '71 is pivoted on the pin 68 and carries an operatingroller '72. A second toggle link '73 has pivoted thereon an inkingroller '74, the toggle links being pivoted at '75 and biased to closedposition by spring '76 coiled about the pivot. This spring is strongerthan a spring '77, coiled about the pin 68, and which urges the stamparm 69 toward the bar 53, and thus normally holds the parts in theposition shown in Figure '7. A stem '78 extends up from an adjustablemounting on the plate 43 and has a trip '79 pivoted thereon. A springpermits the trip to yield in one direction, and a pin 81 preventsyielding in the other direction.

In operation, after the initial part of the carriage return movement hasadvanced the strip 1'7, further movement causes the roller '72 to engagethe trip '79 which does not yield in this direction. Hence the trip '79overcomes the spring '76, and spreads the toggle, causing -a flange 82on the inking roller '74 to roll along the underside of the strip 53.This permits the spring '77 to swing the arm 69 upwardly, and push thestamp 70 throughan aperture 83 in the strip 53, and thus stamp the paper1'7 against the backing strip 52 as shown in Figure 8.

As the roller passes the trip '79, the spring '76 is released, and drawsthe parts back to the position of Figure '7. In this movement the inkingroller rides along the arm 69 and the stamp '70, thus inking the stampfor the next impression. On the typing stroke of the carriage, thespring 80 yields and permits the trip '79 to ride under the roller '72without actuating the stamp mechanism. I

' The invention is not limited to the details disclosed, but insteadincludes such embodiments of the broad ideas as fall Within the scope ofthe appended claims.

I claim:

1. In combination with a typewriter having a carriage and a platenadapted to receive a paper, means actuated by return movement of saidcarriage for relatively moving another paper around said platen, andmeans actuated by further movement of said carriage for cutting thepaper advanced by said first mentioned means.

2. In combination with a typewriter having a carriage and a platenadapted to receive a carbon web, means independent of the platen andactuated by movement of said carriage for moving paper around saidplaten relative to said carbon web, and means actuated by furthermovement of said carriage for severing the paper advanced by said firstmentioned means.

3. In combination with a typewriter having a frame and a carriagethereon having a platen, means for simultaneously typing papers on saidplaten, means actuated by initial return movement of said carriage foradvancing one of said papers more than another, and means actuated bythe remainder of the carriage return movement for cutting the moreadvanced typed paper.

4. In combination with a typewriter having a frame and a carriage, anarm pivoted on said frame, a cutter carried by said arm, and means forswinging said arm in a plane parallel to the movement of the carriage tobringsaid cutter into engagement with paper thereon and then holdingsaid arm stationary, whereby movement of said carriage causes cutting ofsaid paper.

5. In combination with a typewriter having a frame and a carriage, anarm pivoted on said frame, a cutter wheel carried by said arm, means foractuating said arm to cause said cutter wheel to cut paper on saidcarriage upon movement of said carriage, said means also serving to move"said cutter wheel to inoperative position upon further movement of thecarriage.

6. In combination with a typewriter having a frame and a carriage,guides on said carriage between which typed paper passes, an arm"pivoted on said frame, a cutter wheel carried by said arm, and means forcausing said cutter wheel to force the paper against one of said guides,to sever the paper upon return movement of the carriage. 7. Incombination with a typewriter having a frame and a carriage thereonhaving a platen, a backing strip, means for yieldingly mounting saidbacking strip on said carriage to receive paper from said platen, acutter wheel, and means mounted on said frame for causing said cutterwheel to cut the paper against said yieldingly mounted backing strip,upon return movement of said carriage.

8. In combination with a typewriter having a carriage and a platen,means for moving paper around said platen, means actuated by returnmovement of said carriage for cutting said paper, including a cutterwheel and means for camming said cutter wheel out of the path of saidpaper for the forward movement of said carriage.

9. In combination with a typewriter having a carriage and a platen,means for moving paper around said platen, means actuated by returnmovement of said carriage for cutting said paper, means for camming saidcutting means out of the path of said paper for the forward movement ofthe carriage, means for latching said cutting means in cammed position,and means for releasing said latch for the return movement.

10.In combination with a typewriter having a frame and a carriagethereon having a platen, a backing strip under which typed paper fromsaid platen passes, an arm pivoted on said frame carrying. a cutterwheel, said backing strip having an aperture throughwhich said cutterpasses at the end of the forward movement of the carriage, and means foractuating said arm to withdraw said cutter from said aperture and tocause said wheel to cut the paper against said backing strip during thereturn movement of the carriage.

11. In combination with a typewriter having a carriage and a platen,means actuated by movement of said carriage for cutting and stamping thepaper typed on said platen.

12. In combination with a typewriter .having a carriage and a platenaround which paper passes, a'cutter, a stamp, and means actuated bymovement of said carriage for causing said cutter and said stamp to actupon said paper.

13. In combination with a typewriter having a carriage and a platenaround which paper passes,

means for stamping said paper, means for severing said paper, andmeansfor actuating both of said means by movement of the carriage.

' 14. In combination with a typewriter having a frame and a carriagethereon having a platen, a backing strip receiving paper from saidplaten, an arm pivoted on said frame carrying a cutter wheel, a stamppivoted on said carriage, and means for causing said wheel and saidstamp to force said paper against said backing strip.

15. In combination with a typewriter having a frame and a carriagethereon having a platen, means on said carriage for passing paper aroundsaid platen, and cooperating means on said carriage and frame actuatedby movement of the carriage for cutting and stamping said paper.

16. In combination with a typewriter having a carriage, a backing stripon said carriage, a guide strip associated with said backing strip,means for causing paper to pass between said strips, a cutter adapted topass along said guide strip to cut the paper against said backing strip,said guide strip having an aperture therein, and stamp mechanismdetachably carried by said guide strip and operable upon said paperthrough said aperture.

17. In combination 'with a typewriter having a frame and a carriagethereon having a platen around which paper passes,'means for typingpaper on said platen, a backing strip under which the paper passes, anarm pivoted on said frame carrying a cutter wheel, said backing striphaving an aperture through which said outter passes at the end of theforward movement of the carriage, and from which said cutter returns,and means for actuating said arm for causing said wheel to cut the paperagainst said backing strip during part of the return movement of thecarriage.

18. In combination with a typewriter having a frameand a carriagethereon having a platen, means for typing paper on said platen, abacking strip under which the paper passes, a support detachably mountedon said carriage near said backing strip, a stamp pivoted on saidsupport and biased toward said backing strip, an inking device biased tohold said stamp away from said backing strip, and means for moving saidinking device clear of said stamp for causing said stamp to stamp saidpaper against said backing strip during part of the return movement ofthe carriage.

19. In combination with a typewriter having a carriage and a platenadapted to receive a paper, a cutter, means for causing said cutter tofollow behind said platen during the forward movement of the carriage,and means actuated by return movement of said carriage for causing saidplaten to overtake and said paper to engage said cutter;

20. In combination with a typewriter having a frame and a carriagethereon having a platen, a stamp pivoted on said carriage, means forcutting the paper typed on said platen, and means operated by movementof said carriage for actuating said stamp and cutting means.

21. In combination with a typewriter having a main frame and a carriagethereon provided with a platen around which paper passes and means fortyping on said paper, mechanism for stamping said paper, and meansindependent of said typing means actuated in timed relation to themovement of said carriage for actuating said stamping mechanism.

22. In combination with a typewriter having a main frame and a carriagethereon provided with carriage for severing said paper.

24. In combination with a typewriter having a frame and a carriagethereon having a platen, coacting pressure rollers mounted on saidcarriage. for drawing paper around said platen, means for drivingsaidrollers actuated by the initial part of the return movement of saidcarriage, and means actuated by a further return movement of saidcarriage for stamping said paper.

25. In combination with a typewriter having a carriage and a platenaround which paper passes, a stamp biased toward said paper, an inkingdevice biased to hold said stamp away from said paper, and meansactuated by return movement of said carriage for moving said inkingdevice clear of said stamp.

26. In combination with a typewriter having a carriage and a platenadapted to receive a paper, means actuated by return movement of saidcarriage for stamping said paper.

27. In combination with a typewriter having a carriage and a platen,means actuated by return movement of said carriage, for moving paperaround said platen and means actuated by further riage for moving paperaround said platen rela-.

tive to said carbon web, and means actuated by further movement of saidcarriage for stamping the paper advanced by said first mentioned means.

30. In combination with a typewriter having a frame and a carriagethereon having a platen, means for simultaneously typing papers on saidplaten, means actuated by initial return movement of said carriage foradvancing one of said papers more than another, and means actuated bythe remainder of the carriage return movement for stamping the moreadvanced typed paper.

ROSWELL C. STEVENS.

